01519176

Component

https://doi.org/10.3141/2421-17

http://scholar.google.com...Zhou&publication_year=2014

The estimation of traffic state on freeway segments is widely studied as a complex nonlinear and stochastic estimation problem. A unified representation with a parsimonious explanation for traffic observations under free-flow, congested, and dynamic transient conditions is developed by capturing the essential characteristics of forward and backward wave propagation through cumulative flow count variables. New formulations are presented to use Bluetooth vehicle identification records and GPS vehicle location data on a freeway corridor with a merge and diverge. With the addition of nonnegativity and maximum discharge rate constraints, a computationally efficient linear programming model is constructed to estimate traffic states (i.e., density and traffic flow) from cumulative flow counts at each second. The proposed model is implemented and tested systematically on the basis of a real-world next generation simulation (NGSIM) data set.

01541211

14-5449

English

pp 151–160

2014

Transportation Research Record: Journal of the Transportation Research Board

9780309295154

Print

Figures (8) ; References (26) ; Tables (1)

Automatic vehicle detection and identification systems; Bluetooth technology; Freeway operations; Global Positioning System; Traffic congestion; Traffic estimation; Traffic flow; Vehicle design

Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Jan 27 2014 3:55PM

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• Experimental Investigation of Pedestrian Personal Space: Toward Modeling and Simulation of Pedestrian Crowd Dynamics
• Exploring Areawide Dynamics of Pedestrian Crowds: Three-Dimensional Approach
• Group Dynamics in Pedestrian Crowds: Estimating Proxemic Behavior
• Influence of Road Layout on Network Fundamental Diagram
• Macroscopic Fundamental Diagram for Brisbane, Australia: Empirical Findings on Network Partitioning and Incident Detection
• Maximum Pressure Controller for Stabilizing Queues in Signalized Arterial Networks
• Mechanism of Early-Onset Breakdown at On-Ramp Bottlenecks on Shanghai, China, Expressways
• Modeling and Analysis of Merging Behavior at Expressway On-Ramp Bottlenecks
• Modeling Vehicle Interactions During Merge in Congested Weaving Section of Freeway Ramp
• Multiscale Traffic Flow Modeling in Mixed Networks
• Pedestrian Walking Characteristics Through Angled Corridors: An Experimental Study
• Real-Time Prediction of Near-Future Traffic States on Freeways Using a Markov Model
• Traffic Flow Prediction Using Optimal Autoregressive Moving Average with Exogenous Input-Based Predictors
• Use of Probe Vehicle Data to Determine Joint Probability Distributions of Vehicle Location and Speed on an Arterial Road
• Volume Delay Functions Based on Stochastic Capacity